Silver cutlery hallmark

I’ve inherited some cutlery and do not know if it’s silver as the hallmark isn’t easy to understand. Any help appreciated :+1:

It’s certainly not sterling, as these aren’t actual “hallmarks.” I can’t find the exact maker, but this is electroplate. The A1 indicates that it’s the maker’s best grade of plating. But since there’s still virtually no precious metal on there, it has only decorative value.

1636JTEbis
JTE&S, unidentified.